A planar switched‐beam antenna with compact size

A planar pattern reconfigurable patch antenna is proposed. The proposed antenna is a circular array composed of three radiating elements, and each element can generate a horizontally polarized main beam with a half‐power beamwidth of about 135°. To switch the beam direction, a single‐pole three‐thro...

Full description

Saved in:
Bibliographic Details
Published in:Microwave and optical technology letters 2024-01, Vol.66 (1), p.n/a
Main Authors: Lin, Yu‐Jie, Row, Jeen‐Sheen
Format: Article
Language:English
Subjects:
Antenna arrays
Circuit design
compact antenna
Diameters
Horizontal polarization
Patch antennas
pattern reconfigurable antenna
planar antenna
Reconfiguration
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A planar pattern reconfigurable patch antenna is proposed. The proposed antenna is a circular array composed of three radiating elements, and each element can generate a horizontally polarized main beam with a half‐power beamwidth of about 135°. To switch the beam direction, a single‐pole three‐through circuit is designed on the same printed circuit board as the radiating elements, and the total area of the integrated planar antenna is a circular shape of diameter 0.37λ0. A prototype operated at 2.45 GHz is constructed, and the measured results demonstrate that the pattern reconfigurable antenna can give three steerable beams in the E plane, and the gain and the front‐to‐back ratio of each beam are 3.2 dBi and 15 dB, respectively; moreover, an operation bandwidth of more than 10% is also achieved. Simulated analyses are also performed to explain the antenna performances mentioned above, and they have good agreements with the experimental data.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.33878